C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 1 1 RPC gas system installation (step by step plan) (CUHK, 6/11/2009) Changguo Lu, Kirk McDonald.

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Presentation transcript:

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 1 1 RPC gas system installation (step by step plan) (CUHK, 6/11/2009) Changguo Lu, Kirk McDonald Princeton University

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 2 2 RPC gas room instal. 9/21-10/16Racks/Cable tray instal. 10/13 – 11/9 Gas distri./bubbler instal. 11/13 – 11/24 Lay tubing in trays. 10/13 – 11/9 Gas pipe instal. 12/2 – 12/15 RPC system test, 12/16 – 2/18/10 Muon schedule related to gas system(v10.8) (highlighted in red)

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 3 3 EH #1 floor plan (DYBEng-doc-53, Changgen Yang) RPC supporting rail RPC module loaded structures can be parked here w/o interference with pool installation RPC supporting structures, utilities and modules can be assembled here Gas mixing system installation in gas room has no any interference with other installation works.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 4 4 Step 1: Lay down gas tubing into cable tray. Location: EH#1, Entrance area, where the supporting structure being assembled. Supervisor: Princeton. Installation team: Local. Task: Cut the tube to right length; cap and stick labels to two ends; lay down the tube into the right cable tray and tie a bundle together. Work load: 216 tubes into 9 cable trays.

Layout of gas tubing Note for calculation of RPC system cable/tube length, 5/2009, Guan Mengyun, IHEP

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 6 6 Separating two structures with 1m gap 4m wide structure boundary Add 2m additional length to these 4 (x4) tubes for facilitating the separation of two structures with 1m gap.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 7 7 Separating two structures with 1m gap (cont’d) 4m wide structure boundary Add additional 2m length to these 4 (x4) tubes for facilitating the separation of two structures with 1m gap.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 8 8 Individual tube length (m) Tubing lengthColumnRow1Row2Row3Row4Row5Row total inlet/outlet total(2 inlet/outlet)2472.6

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 9 9 Individual tube label Inlet tubing labelColumnRow1Row2Row3Row4Row5Row6 Branch 11H1C1R1B1InH1C1R2B1InH1C1R3B1InH1C1R4B1InH1C1R5B1InH1C1R6B1In 2H1C2R1B1InH1C2R2B1InH1C2R3B1InH1C2R4B1InH1C2R5B1InH1C2R6B1In 3H1C3R1B1InH1C3R2B1InH1C3R3B1InH1C3R4B1InH1C3R5B1InH1C3R6B1In 4H1C4R1B1InH1C4R2B1InH1C4R3B1InH1C4R4B1InH1C4R5B1InH1C4R6B1In 5H1C5R1B1InH1C5R2B1InH1C5R3B1InH1C5R4B1InH1C5R5B1InH1C5R6B1In 6H1C6R1B1InH1C6R2B1InH1C6R3B1InH1C6R4B1InH1C6R5B1InH1C6R6B1In 7H1C7R1B1InH1C7R2B1InH1C7R3B1InH1C7R4B1InH1C7R5B1InH1C7R6B1In 8H1C8R1B1InH1C8R2B1InH1C8R3B1InH1C8R4B1InH1C8R5B1InH1C8R6B1In 9H1C9R1B1InH1C9R2B1InH1C9R3B1InH1C9R4B1InH1C9R5B1InH1C9R6B1In ColumnRow1Row2Row3Row4Row5Row6 Branch 21H1C1R1B2InH1C1R2B2InH1C1R3B2InH1C1R4B2InH1C1R5B2InH1C1R6B2In 2H1C2R1B2InH1C2R2B2InH1C2R3B2InH1C2R4B2InH1C2R5B2InH1C2R6B2In 3H1C3R1B2InH1C3R2B2InH1C3R3B2InH1C3R4B2InH1C3R5B2InH1C3R6B2In 4H1C4R1B2InH1C4R2B2InH1C4R3B2InH1C4R4B2InH1C4R5B2InH1C4R6B2In 5H1C5R1B2InH1C5R2B2InH1C5R3B2InH1C5R4B2InH1C5R5B2InH1C5R6B2In 6H1C6R1B2InH1C6R2B2InH1C6R3B2InH1C6R4B2InH1C6R5B2InH1C6R6B2In 7H1C7R1B2InH1C7R2B2InH1C7R3B2InH1C7R4B2InH1C7R5B2InH1C7R6B2In 8H1C8R1B2InH1C8R2B2InH1C8R3B2InH1C8R4B2InH1C8R5B2InH1C8R6B2In 9H1C9R1B2InH1C9R2B2InH1C9R3B2InH1C9R4B2InH1C9R5B2InH1C9R6B2In

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 10 Question #1 The prototype gas system at IHEP has used 6mm OD tubing while the fitting used in this gas system is ¼” OD polyflo fitting. Can we decide the tube size for the gas system at EH#1 (and near future #2 and #3) is 6mm OD, and ordered in China? Can IHEP provide the local company’s name?

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 11 Step 2: Install gas mixing system in gas room. Location: Gas room. Supervisor: Princeton. Installation team: Princeton and local. Task: Install the gas control crates and mixing panel onto racks, install gas cabinet, connect gas cylinders and exhaust duct, install GC system and connect to gas mixture, install 1 PC in gas room, test entire mixing system. Work load: 1 mixing panel, 4 crates, 1 gas cabinet, 1 auto switchover, 3 manual switchover panels, 2 6-pack Ar, 2 isobutane, 2 SF6, 2 R134A cylinders, 1 exhaust duct.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 12 Step 3: Install gas distribution/digital bubbler crates onto racks. Location: EH#1 (Entrance area?) and gas mixing room. Supervisor: Princeton. Installation team: Princeton, local. Task: Mount the distribution/digital bubbler readout crates onto racks, filling oil into bubblers, connect gas tubes into correct channels (both inlet and outlet), connect flat cable, USB extenders, Ethernet cable, USB-RS232 cables, install 1 PCs in electronics room. Test the entire system with Ar gas. Work load: 7 gas distribution/digital bubbler crates, 108 gas inlet/108 gas outlet tubes connection, 1 PC, 1 Ethernet cable, 7 flat cables, 7 USB-RS232 converters.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 13 Question #2 The PC installed in gas mixing room will have one Ethernet cable that needs to be connected to the digital bubbler readout crate at EH#1. Can we use the same hole for the gas pipe on the wall to install this cable?

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 14 Step 4: Install copper tubing from gas room to EH#1 : Location: EH#1 and gas room. Supervisor: Princeton. Installation team: Local. Task: Route ¾” copper tubing from gas room to EH #1 to reach the flexible gas hose. Install 12.3m long braided PTFE hose into flexible cable tray (see next slide). Work load: Layout the route, cut copper tubing to right length, connect the copper tubes piece by piece, install the fixture at both ends.

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 15 Flexible cable tray to avoid disconnecting the cables The configuration of the flexible cable tray is shown in the above plot, One end of the flexible cable tray is fixed at the trench, the other end is fixed at the center of RPC support structure, (details in next slides) Given R=0.2m, offset=1m, we need 12.3m flexible cable tray for each site, The RPC’s will move as a single unit except for repairing. Far site pool  Total Length = 9.65m + π *R+ 2*offset  R is the bending radius,  Offset gives convenience to installation (DocDB #2370, Guan Mengyun, Yang Changgen)

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 16 Question #3 Can we decide the length of the flexible gas hose now? 12.3m? Can we hire local skilled technician for installing the polyflo tubing, gas pipe, gas cylinders clamping fixtures, gas switchover panels? How to share the labor cost?

C. Lu, RPC System Installation Workshop, 6/11/2009, CUHK 17 Step 5: Test entire system with RPC modules. Location: EH#1, gas mixing room. Supervisor: Princeton. Installation team: Princeton, local. Task: Install GC system, check the gas mixing ratio through GC; check the bubbling rate for each sub-branch, stability of the system, interlock system functioning.

Summary of the installation steps